<template>
  <div class="about">
    <h1>This is an about page</h1>
  </div>
  <!--<div v-model="message"></div><-->
</template> 
<script>
import Vue from 'vue';
new Vue ({
  el: '#app',
  data: {message : '<h1>菜鸟教程</h1>'}

})
</script>